Wheel Tech & Fitment
Fitment Guides
Determining Vehicle Fitment
Fitting a wheel and tire package is different for each vehicle, but by following these guidelines your chances for success will be much greater. In most cases you can use the physical dimensions of the current wheel and tire assembly to determine the dimensions of the new wheel and tire package.
Determining Wheel Caliper Clearance
A. Distance between Hub center point to bottom edge of caliper.
B. Distance between Hub center point to near edge of outward face of caliper.
C. Distance between Hub center point to far end edge of outward face of caliper.
D. Distance between Hub center point to the top edge of caliper.
E. The distance of caliper over the hub mounting surface.
TYPICALLY OPPOSING PISTON CALIPER ONLY
E2. The distance of the recess from the face of the caliper. (inner)
TYPICALLY OPPOSING PISTON CALIPER ONLY
E3. The distance of the recess from the face of the caliper. (outer)
F. Protrusion of drive shaft over hub mounting surface.
Measuring Wheel Backspacing
The easiest way to measure the backspace of a wheel is to lay the wheel face down on a smooth surface so the backside of the wheel is facing upward. Take a straight edge and lay it diagonally across the inboard flange of the wheel.
Use a tape measure to measure the distance from somewhere on the straight edge directly downward to the hub mounting pad of the wheel. Your measurement will be the backspace in inches.
Measuring Wheel Width
Measure the distance from bead seat to bead seat.
